Screen door grille



y 14, 1931- H. J. LEBHERZ 1,814,317

' SCREEN DOOR GRILLE Filed June 4, 1929 0 ATTORNEY .7

Patented July 14, 1931 UNITED STATES HARRY PATENT OFFICE J. LEBHERZ, OFFREDERICK, MARYLAND, ASSIGNOR TO THE EVEREDY COM- PANY, OF FREDERICK,MARYLAND, A CORFORATIQN OF MARYLAND I SCREEN DOOR GRILLE Applicationfiled. June 4, 1929. Serial No. 368,392.

My invention relates broadly to protective attachments for screens andmore particularly to a construction of a grille adapted for installationupon the frame of a screen for protecting the fine wire screen againstinjury.

One of the objects of my invention is to provide a construction ofprotective grille for screens by which the fine wire mesh of a screenmay be protected against injury from obstructions and pressure broughtto bear against the protective grille rather than against the fine wiremesh of the screen.

Another object of my invention is to provide a construction ofattachable grille for screens with means by which the grille may becentered over that area of the fine wire screen mesh which it is desiredto protect against injury.

V A further object of my invention is to provide a self-sustaininggrille which is attachable to the frame of a screen for protecting thescreen against injury for safeguarding an entrance-way, the grille beingsupported with respect to the screen from a multiplicity of positions onthe frame of the screen.

A still further object of my invention is to provide a construction ofgrille for the protection of screens wherein the grille comprises amultiplicity of laterally and longitudinally extending strip members,interlaced or woven, electrically welded at their .extremities withstrengthening ribs outstruck from the strip members intermediate thejunctures with means for adj ustably centering and supporting the grillewith respect to the frame of the screen.

My invention will be more fully understood from the specificationhereinafter following by reference to the accompanying drawings, inwhich:

Figure 1 illustrates the grille of my invention applied to the lowersection of a screen door; Fig. 2 illustrates a modified form of grilledstructure of my invention applied to an intermediate section of thescreen door; Fig. 3 is an enlarged fragmentary View of the grille of myinvention showing one of the supporting means by which the grille may becentered with respect to the frame of the screen; Fig. 4C is acrosssectional view through the grille structure on line 4:4: of Fig. 3;Fig. 5 is a cross-sectional view of one of the adjustable supportingmeans for the grille taken on line 5-5 of Fig. 3; and Fig. 6 is across-sectional view. through the grille structure on line. 6-6 of Fig.3.

The grille of my invention finds particular application upon screendoors where it is desired to protect the fine wire mesh of the screendoor against injury. The grille consists of a multiplicity of laterallyand longitudinally extending strips which are electrically weldedattheir extremities and are each strengthened by an outstruck ribintermediate the junctures of the strips. The grille is provided withmarginal supports, each of which have a portion thereof having asubstantially tubular cross-section into which pin members are arrangedto adjustably slide, which pin members are supported from the frame ofthe screen. By provid ing adjustable pin or rod members at each cornerof the grille, it is possible to adjust the grille to screens ofdifferent sizes in order to properly center the grille with respect tothe frame and the screen which is carried by the frame.

Referring to the drawings in. more detail, reference character 1designates a screen door having an upper screen section 2 and lowerscreen sections 3 and f. The lower screen sections are protected againstinjury by the application of the grille '5 to the frame of the screen. T1e grille 5 as shown more clearly in Fig. 3 comprises a m ultiplic' ityof laterally extending strip members 6 and vertically extending stripmembers 7 which are woven or interlaced between a pair of marginal framemembers 8 and 9. The marginal members 8 and 9 have a substantiallytubular portion 10 into which rod members 11 project at each of the fourcorners thereof. The rod members 11 are each provided with flattenedportions 12 which are secured by means of screw members 14 to the frameof the screen in that position by which' the grille may be centered overthe fine Wire screen mesh. The laterally and longitudinally extendingstrip members 6 and 7 are each provided with outstruck ribs 15intermediate the junctures of the strips at 16 for the purpose ofstrengthening the grille. The junctures 16 are not mechanicallyconnected, the strips being shaped to provide offset flattened portionsat each of the cross-over points to permit the weaving or interlacing ofthe strips without displacement of: the strips substantially out ofalignment with the plane ofthe grille. The strips are maintained inposition by connections at the extremities thereof. The flat faces ofthe strips abut with each other and their intersections, and by virtueof the inherent resiliency ofthe strips sufficient tension is madeeffective to secure the strips in substantiallyzthe same plane. Themarginal members 8 and 9 each have parallel extendingjaws which I havedesignated at 17 between which the ends of strips? project for thepurpose of confining the vertically extending strips by a weldingprocess rigidly to the marginal members 8 and 9. .It will be observedthat the strips 6 and 7 pass alternating. above and below each other atthe. juncture positions in the nature. of awoven -or interlacedstructure by which the grille structure is considerably strengthened.

The grille of my inventionhas. been found to be extremely practical inits construction and successful in its use. The grille may be attachedto screen-doorsor windows of various sizes and serves to. protect thescreen against the pressures to which the screen may be subjected inthenormal wear and tear in the use of the screen door. The grille alsoprovides .safety means when applied to windows in protecting a screenedentrance againstthe cutting away of the screen for the purpose of entrytherethrough.

lVhile I have described the grille of my invention, in certain of its.preferred embodiments, I desire that it be understood thatmodifications may be made and that'no limitations upon my invention areintended other than are imposed by the scope of the appended claims.

lVhat I claim as new and desire to secure by Letters Patent of theUnited States is as follows:

1. A grille structure .comprising a multiplicity of laterally .and'longitudinally extending strip members interwoven with each other intensioned engagement at the junctures thereof, outstruck ribs formed insaid tionally engaging the inner walls of the cylindrical recesses insaid marginal members for supporting said grille structure.

2. In a grille structure, a multiplicity of stripsextendingsubstantially at right angles with respect to each other andinterlaced, said strips resiliently engaging each other at theintersections thereof and provided with strengthening ribs intermediatesaid intersections, marginal members at opposite ends of the grille forreceivingqtheends of the strips which extend at substantially rightangles-thereto, tubular portions formed in said marginal members, andpins frictionally engaging the tubular portions of said marginal membersfor mounting said grille structure.

3. In a. grille, a multiplicity of strips extending substantially atright angles with respect to each other and interlaced one -with theother to form a multiplicity of sections, said strips ,beingmechanically free from each other .at each intersection but resilientlysprung together, means strengthening saidstrips intermediatetheintersections. thereof, a pair of marginal members at opposite ends ofsaid grille, said marginal members each including portions which receivethe ends of -strips-extending at right angles to themarginal members andbeing provided with tubular portions adjacent each corner of the grille,and adjustable pin members telescopically positioned within the tubularportions of said marginal members, for. supporting said grille.

4. A grille comprising a plurality of laterally and longitudinallyextending interwoven strip members, marginal members extending along twoopposite edges of said grille, said marginal members each comture.

HARRY J. LEBHERZ.

strip members-between thejunctures thereof,

laterally extending marginal members .at the top and bottom of saidgrille, said marginal members receiving the ends of said longitudinallyextending strips, a cylindrical recess in each of said marginal membersand pin members projecting into the cylindrical recesses in saidmarginal members for fricii U

